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Answer:
The Greatest Common Factor (GCF) for 100 and 80, notation GCF (100,80), is 20.
Step-by-step explanation:
Step-by-step explanation:
Two factors that have a sum of 5 and a product of -66: 11 and -6.
x² + 5x - 66
= (x + 11)(x - 6).
That's all the square roots of the form 5.xxxx. The numbers start at 5² and end at 6²-1.
So that's 6² - 5² = 11 numbers. We can list them:
25,26,27,28,29,30,31,32,33,34,35
Answer: 11
